MORGAN HEBARD 21 



or with latero-cephalic traces of buffy. Ventral margins of femora all 

 supplied with a single, stout, distal spine.) 



Pycnoscelus surinamensis (Linnaeus) 

 FF. General coloration light paris green. Tegmina not pitted. (Ven- 

 tral margins of femora frequently with a single, reduced, distal spine 

 on all, or some, of these margins, or unarmed.) 



Panchlora cubensis Saussure 

 EE. Size extremely large. Pronotum subelliptical. Arolia absent. (Col- 

 oration blackish brown and bufTy. Pronotum buffy, with a large, shield- 

 shaped, shining blackish brown area, in which are striking pale markings. 

 Tegmina, part blackish brown, part buffy. Ventro-cephalic margin of 

 cephalic femora with few, stout, proximal spines, succeeded by a closely 

 set row of stout hairs. All ventral femoral margins with single, stout, 



distal spines.) Blaberus craniifer Burmeister 



DD. Tarsal claws specialized, showing on each internal margin two micro- 

 scopic teeth. Supra-anal plate not bilobate. Ocellar spots absent. Fourth 

 tarsal joint alone supplied with a pulvillus. (Size very small. General 

 coloration buffy. Head with a narrow, transverse line of prout's brow'n 

 between eyes. X'entral surface of abdomen margined with buffy. Dorsal 

 surface con^•ex. suggesting certain forms of Coleoptera. Wings with a 

 very large appendicular field. Ventral margins of femora, excepting 

 caudal margin of cephalic femora, each supplied with a single, elongate, 

 distal spine. Large arolia present.) . . .Plectoptera floridana new species 

 CC. Subgenital plate specialized. 



D. Subgenital plate valvular, with bases of valves forming an acute angu- 

 lation. Insect moderately thickly clothed with hairs. Tegmina opaque 

 proximad; membranous, clear transparent, distad. Wings with unfolded 

 anal field. Ocelli minute, with surfaces convex. Ventro-cephalic margin 

 of cephalic femora supplied with a row of minute, chaetiform spines, ter- 

 minated by two heavy, elongate, distal spines; other ventral femoral mar- 

 gins unarmed. Four proximal tarsal joints each bearing a pulvillus. (Mod- 

 erately well developed arolia present.) Size very small. Head and pro- 

 notum yellow, with a brownish orange tinge. Opaque portions of tegmina 

 black, with a metallic, green-blue sheen. . . Holocompsa nitidula (Fabricius) 

 DD. Subgenital plate with a medio-longitudinal, linear cleft distad. Insect 

 smooth. Tegmina delicate, translucent. Wings with folded anal field (and 

 with an appendicular field). Ocelli absent. Ventral margins of femora, 

 excepting caudal margin of cephalic femora, each supplied with a single, 

 elongate, distal spine. Fourth tarsal joint alone supplied with a puhillus. 

 (Large arolia present.) Size small. General coloration ochraccous-buff. 

 Chorisoneura texensis Saussure and Zehntncr 

 BB. Tegmina absent. (Tarsal claws simple.) 



C. Median and caudal femora with a disto-dorsal genicular spine. (Surface 

 clothed with hairs.) 

 MEM. AM. ENT. SOC, 2. 



